Github user holdenk commented on a diff in the pull request:
https://github.com/apache/spark/pull/15389#discussion_r82443930
--- Diff: python/pyspark/rdd.py ---
@@ -2029,7 +2030,11 @@ def coalesce(self, numPartitions, shuffle=False):
>>> sc.parallelize([1, 2, 3, 4, 5], 3).coalesce(1).glom().collect()
[[1, 2, 3, 4, 5]]
"""
- jrdd = self._jrdd.coalesce(numPartitions, shuffle)
+ if shuffle:
--- End diff --
Seems you could just call `repartition` here to avoid the code duplication
or swap `repartition` to call `coalesce`.
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